水力空化作用强化月桂酰氯酰化大豆蛋白工艺的研究
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摘要
在水力空化作用下,以大豆蛋白为原料,利用月桂酰氯酰化修饰大豆蛋白。设计了产生水力空化作用的强化反应装置,利用单因素实验对水力空化压力、水力空化时间、水力空化温度、料液比对月桂酰氯酰化大豆蛋白产物产率的影响进行了研究。采用响应面实验优化了工艺条件,测定了月桂酰氯酰化大豆蛋白产物的表面活性性能。结果表明:水力空化强化月桂酰氯酰化大豆蛋白最优工艺条件为水力空化压力0.32 MPa、水力空化时间56 min、水力空化温度57℃、料液比1.75∶1,在此条件下,产率为96.5%,酰化产物表面活性性能优越。
Hydraulic cavitation was used to enhance reaction of modifying soybean protein by lauroyl chloride. Hydraulic cavitation enhancement equipment was designed. The effects of hydraulic cavitation pressure,hydraulic cavitation time,material-liquid ratio and hydraulic cavitation temperature on the yield of acylation product were researched by single factor experiment,and the conditions were optimized using response surface methodology,and the surface activity of the acylation product was determined. The results showed that the optimal conditions for acylation of soybean protein by lauroyl chloride were obtained as follows: hydraulic cavitation pressure 0. 32 MPa,hydraulic cavitation time 56 min,material-liquid ratio 1. 75∶ 1,hydraulic cavitation temperature 57 ℃. Under these conditions,the yield was 96. 5%. The surface activity of the product was superior.
Hydraulic cavitation was used to enhance reaction of modifying soybean protein by lauroyl chloride. Hydraulic cavitation enhancement equipment was designed. The effects of hydraulic cavitation pressure,hydraulic cavitation time,material-liquid ratio and hydraulic cavitation temperature on the yield of acylation product were researched by single factor experiment,and the conditions were optimized using response surface methodology,and the surface activity of the acylation product was determined. The results showed that the optimal conditions for acylation of soybean protein by lauroyl chloride were obtained as follows: hydraulic cavitation pressure 0. 32 MPa,hydraulic cavitation time 56 min,material-liquid ratio 1. 75∶ 1,hydraulic cavitation temperature 57 ℃. Under these conditions,the yield was 96. 5%. The surface activity of the product was superior.
引文
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[14]朱伯铨,管红梅,刘文超.以表面活性剂改善水对鳞片石墨的润湿性研究[J].武汉冶金科技大学学报(自然科学版),1999,22(3):242-244.
[2]谢文磊.松香酰基复合氨基酸表面活性剂的合成研究[J].中国粮油学报,2001(6):51-54.
[3]周燕君,陆向红,俞云良,等.水力空化技术强化高酸值油脂脱酸反应[J].太阳能学报,2010,31(12):1532-1536.
[4]张晓冬,杨会中,李志义.水力空化强度与空化自由基产量的关系[J].化工学报,2007(1):27-32.
[5]李志义,张晓冬,刘学武,等.水力空化及其对化工过程的强化作用[J].化学工程,2004(4):27-29.
[6]鲁健章,孙丽华,周彦钢.凯氏定氮法测定鱼蛋白质含量的干扰因素分析[J].食品科学,2010,31(19):453-456.
[7]胡卫强,黎华美,陈浩.N-酰基氨基酸表面活性剂的制备及应用进展[J].广州化工,2016,44(16):34-36.
[8]石莹莹.N-酰基氨基酸表面活性剂的性能及应用研究进展[J].河南化工,2016,33(2):16-18,28.
[9]檀志芬,生庆海,邱泉若,等.蛋白质水解度的测定方法[J].食品工业科技,2005(7):174-175,178.
[10]陈钧辉.生物化学实验[M].3版.北京:科学出版社,2003.
[11]姚玉静,杨晓泉,邱礼平,等.酰化对大豆分离蛋白乳化性能的影响[J].食品与机械,2008(2):12-14.
[12]慈峰,曹雁平,许朵霞,等.木瓜蛋白酶改性对大豆分离蛋白乳化性能的影响[J].食品与发酵工业,2013,39(1):59-63.
[13]程海涛,申献双.水力空化作用强化油酸酰氯酰化大豆蛋白工艺的研究[J].中国油脂,2016,41(12):37-40.
[14]朱伯铨,管红梅,刘文超.以表面活性剂改善水对鳞片石墨的润湿性研究[J].武汉冶金科技大学学报(自然科学版),1999,22(3):242-244.